Valve



nnrrnn srnrns *Partnr orme DANIEL MINLHORN, OF BEVERLY, MASSACHUSETTS.

VALVE.

Specification of Letters Patent No. 32,430, dated May 28, 1861.

taken in connection with the accompanyl ing drawings, hereinafter referred to, forms a full and exact specification of the same, wherein I have set forth the nature and principles of my said improvements, by which my invention may be distinguished from all others of a similar class, together with such parts as I claim and desire to have secured to me by Letters Patent.

The figures of the accompanying plate of drawings represent my improvements.

Figures 1 and 2 are central vertical sections of a valve in its seat or coupling, made according to my improvements. F ig. 3 is a side view of the valve independent of its seat or coupling.

The great desideratum in the construction and operation of valvesused for enema lsyringes, breast pumps and other purposes, is to insure their perfect and immediate seating', so that the valves will instantly find their proper seats. Many arrangements of devices for effecting this purpose have been invented and secured by grant of Letters Patent therefor, but they have never-as yet j fully succeeded in accomplishing the result aimed at, viz; the sure and perfect operation and seating of the val-ve.

The object of the present invention is to so construct and arrange the valves used in enema syringes, breast-pumps &c., that they will instantly and certainly find their seats whereby a more perfect operation of the lsyringe is secured than has heretofore been possible. Y

Hy improved valve consists of a hemispherical body, to the base and curved portions of which is respectively attached (or forming a part thereof) a projection or wing, the planes of the two projections or wings forming a right angle with each other or nearly so. The valve thus made being placed in a suitable coupling-box of the syringe &e., will by means of its projections or wings when the syringe is being operated, be prevented from wabbling about or rolling over for when the valve is m'oved from or to its seat, its tendency to roll over or wab ble is immediately counteracted by the striking of the projections or wings against the sides of the box-coupling, whereby the accurate guiding of the valve to its seat immediately takes place, which in the use of the valves as now constructed could never be accomplished, as for instance, in the use of the ball valves, the ball would invariably roll over and wabble before finding its seat.

c in the drawings represents the body p0rtion of the valve and made of a hemispherical shape. b and c projections or wings respectively attached to (or forming a part of) the base Z and curved portion e, in such a manner that their planes will form a right-angle or nearly so with each other. The projection or wing b of the body a has formed in it two shoulders 7", The valve being formed as above described is then placed in any suitable coupling g of the syringe &c., the interior of the same being so formed as to leave a suitable seat 7i for the body c of the valve.

By the operation of the syringe, breastpump dac., in the usual manner employed for the same, the valve` is forced to and from its seat li, its downward motion being limited by its seat and its upward motion by the shoulder i of the coupling j, against which the shoulders f, f of the wing b impinge. In its movement from and to its seat, any tendency of the valve to wabble or roll over prevented by the counteracting influence of the projections or wings b and c occa` sioned by their striking against the interior surface of the coupling-box and as the two projections or wings are arranged at right angles or nearly so to each other, it will be evident that in whatever direction the body of the valve may attempt to wabble, from the action of the fluid passing through the syringe &c., it will be immediately counteracted by the striking of either one or the other of the two projections c and c against the interior surface of the coupling, thereby guiding the valve surely and immediately tov its seat.

The body of the valve it is evident might be made of any other form different from that described, as for instance of a spherical shape, but the main object and principle of my invention is to so attach to theY body two oro'ections or winos at ri ht angles 01`` l e e nearly so with each other, in order that the I and c arranged at right angles to each other motion of the valve may be. umform and and operatmg so as to insure the accurate steady and its seating mmecllately secured. play and seating of the valve, as set forth.

Havn@ thus deserlbed my improvements 5 I Shall sate my claim as follows: What I DANIEL MINTHORN' claim as my invention and desire to have se- Vtnesses: cured to me by Letters Patent s- JOSEPH GAVETT,

The valve constructed With two guides b ALBERT XV. BROWN. 

